CN112359481A - Process for preparing non-woven fabric by using cellulose diacetate flock and application of non-woven fabric - Google Patents
Process for preparing non-woven fabric by using cellulose diacetate flock and application of non-woven fabric Download PDFInfo
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- CN112359481A CN112359481A CN202011310745.XA CN202011310745A CN112359481A CN 112359481 A CN112359481 A CN 112359481A CN 202011310745 A CN202011310745 A CN 202011310745A CN 112359481 A CN112359481 A CN 112359481A
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- cellulose diacetate
- woven fabric
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/425—Cellulose series
- D04H1/4258—Regenerated cellulose series
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/12—Aldehydes; Ketones
- D06M13/127—Mono-aldehydes, e.g. formaldehyde; Monoketones
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/188—Monocarboxylic acids; Anhydrides, halides or salts thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
- D06M13/2243—Mono-, di-, or triglycerides
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D2500/00—Materials for garments
- A41D2500/30—Non-woven
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
- D06M2101/08—Esters or ethers of cellulose
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention discloses a process for preparing non-woven fabric by using cellulose diacetate and application of the non-woven fabric, wherein the non-woven fabric is prepared by taking cellulose diacetate short fibers as raw materials and carrying out unpacking, opening and opening, coarse cotton carding, fine cotton combing, lapping, forming and spraying treatment; the molding is carried out by adopting needle punching or spunlace; spraying a solvent which is acetone, glacial acetic acid, glycerol triacetate or a mixed solvent of the three solvents in any proportion on the formed cloth, and finally drying and shaping to obtain the non-woven fabric prepared from the cellulose diacetate linters. The non-woven fabric can be used for water filtration treatment or replacing mask melt-blown fabric, and the phenomenon of short fiber falling can not occur.
Description
Technical Field
The invention relates to the technical field of non-woven fabric manufacturing, in particular to a process for preparing a non-woven fabric by using cellulose diacetate flock.
Background
Nonwoven fabrics, or non-manufactured fabrics, may be classified into melt-blown nonwoven fabrics, needle-punched nonwoven fabrics, spunlace nonwoven fabrics, and the like, according to the manufacturing process. The spinning slices are hot-melted into spinning slurry through a spinneret plate, the non-woven fabric directly sprayed is called melt-blown non-woven fabric, the tows of the melt-blown non-woven fabric are mutually bonded, the ultra-low gram weight non-woven fabric with the weight of less than 10 grams per square meter can be manufactured, the phenomenon of short fiber falling is avoided, and the method is suitable for the fields of facial mask paper, high-grade masks and the like.
The needle punched and spunlaced non-woven fabrics are prepared by making tows such as cotton or chemical fibers into short fibers, and performing the procedures of unpacking, opening, carding, needle punching or spunlacing and the like, are suitable for manufacturing high-gram-weight non-woven fabrics and are widely used in the fields of clothing, industrial filtration and the like.
In addition, a production process of a solution-blown non-woven fabric has been developed, in which a solvent is used to dissolve a spinning slice to form a spinning slurry, and the spinning slurry is directly spun into a web-formed non-woven fabric by a spinneret, or a nano-web-formed non-woven fabric with an ultrahigh draft ratio is obtained by electrostatic traction after being spun by a spinneret, and the electrostatic-spun non-woven fabric is endowed with a specific adsorption performance due to the relatively high specific surface area of filament bundles, but the solvent recovery and other processes are limited, and the cost of the solution-blown non-woven fabric.
At present, the technical development of the non-woven fabric production by the cellulose acetate slice melt-blowing method and the electrostatic melt-blowing method is reported, but the mature technical technology for producing the cellulose acetate non-woven fabric in a large scale cannot be formed due to the high equipment cost investment and the limitation of the production safety technology.
Disclosure of Invention
The invention provides a process for preparing non-woven fabric by using cellulose diacetate flock and application of the non-woven fabric.
The technical scheme of the invention is that the process for preparing the non-woven fabric by using the cellulose diacetate short staple comprises the steps of opening and opening the bale, carding the coarse cotton, combing the cotton, lapping and forming by using the cellulose diacetate short staple as a raw material; and spraying a solvent on the formed fabric by spray treatment, and finally drying and shaping to obtain the cellulose diacetate non-woven fabric.
Furthermore, the monofilament specification of the cellulose diacetate flock is 1 to 2.5 denier, and the length of the cellulose diacetate flock is 6 to 25 mm.
Further, needle punching or water punching is adopted in the forming process. The needle-punching forming process is carried out at least one time of needle-punching or one time of hydro-punching forming, and can also adopt two or even multiple needle-punching forming, or adopt two or even multiple hydro-punching forming.
Further, the solvent sprayed is acetone, glacial acetic acid, glycerol triacetate, or a mixed solvent of acetone, glacial acetic acid, glycerol triacetate mixed according to any proportion.
Further, the spraying amount of the solvent is 1% -13% of the mass of the cloth.
In the preferred scheme, acetone with the mass of 5-7% of the cloth is sprayed during spraying treatment, the temperature of the spraying treatment is normal temperature, and the cloth is dried at 60-130 ℃ after being sprayed and kept stand for 30 minutes.
Further, spraying glycerol triacetate with the mass of 7-13% of the fabric during spraying treatment, performing spraying treatment at normal temperature, and standing for more than 30 minutes after spraying treatment.
Further, solvent recovery treatment is carried out in the processes of spraying solvent and drying and shaping. Solvent gas or fog drops can be recovered by methods such as low-temperature condensation under the working condition of minus 15 ℃ to minus 30 ℃, water washing absorption under the working condition of deep cold water below 10 ℃ and/or activated carbon adsorption.
The invention also relates to application of the diacetate fiber non-woven fabric prepared by the process in replacing melt-blown fabric in the mask production process, wherein the non-woven fabric is 7-15 g/square meter.
The invention also relates to application of the diacetate fiber non-woven fabric prepared by the process in a filter element for water filtration, wherein the non-woven fabric is 30-500 g/square meter.
The invention has the following beneficial effects:
the invention adopts the traditional needle punching or spunlace non-woven fabric forming process in the non-woven fabric production to produce the acetate fiber non-woven fabric, thereby avoiding the high-temperature pyrolysis phenomenon of the acetate fiber in the non-woven fabric melt-blown production process and the safety risk in the electrostatic melt-blown production process.
The invention adds spray treatment after the acetate fiber non-woven fabric is formed, sprays solvent to the fabric, the solvent is sprayed to the winding point of the cellulose diacetate filament and then condensed in a vaporization or atomization state, and partially dissolves the partial filament bundle, so that the winding point of the filament bundle is dissolved, the non-hair-falling effect of natural connection of the winding point of the fiber is obtained by a melt-spraying or electrostatic dissolving-spraying method, the problem that the short hair is easy to fall off in the water-jet or needle-jet forming process of the acetate fiber non-woven fabric is solved, and the phenomenon that the short hair falls off in the later non-woven fabric product is avoided. In addition, the problem of short fiber falling off is solved, and the bursting strength of the non-woven fabric is 4 to 6 times higher than that of the non-woven fabric without solvent treatment.
Detailed Description
The present invention will be further illustrated with reference to the following examples, but the present invention should not be construed as being limited thereto.
Example 1:
removing the outer package of the cellulose diacetate flock bag, placing the cellulose diacetate flock bag on a bale opener to open the compressed flock silk group, sending the flock silk group into a coarse cotton carding process and a combed cotton process in sequence, uniformly lapping according to the gram weight requirement of the produced non-woven fabric, and then forming by three needle punching. Then sending the cloth into an acetone spray treatment process, uniformly spraying acetone on two sides of the needle-punched formed cloth, wherein the temperature of the process is normal temperature, the spraying amount is controlled to be 5% of the mass of the cloth, and the sprayed cloth is dried at the drying temperature of 75 ℃; the time interval between the spray treatment and the drying treatment was about 30 minutes, and the cellulose diacetate nonwoven fabric having a grammage of 250 g/m was obtained after drying.
The equipment of the spraying treatment process is relatively sealed equipment, acetone is atomized at low temperature, condensed and welded to the winding point after contacting the cloth fiber tows, acetone gas overflows in the spraying process and the acetone discharged by the drying box flows through a cryogenic surface cooler to be condensed, recycled and reused; the acetone is vaporized by heating with hot water in the jacket of acetone tank.
The cellulose diacetate nonwoven fabric obtained in example 1 had no shedding of short fibers, and was used in a tap water filtration cartridge to retain particulate impurities, and the 5 μm particle number was found to be 2.
Comparative example 1: removing an outer package of the cellulose diacetate flock bag, placing the cellulose diacetate flock bag on a bale opener to open the compressed flock silk groups, sequentially sending the flock silk groups into a coarse cotton carding process and a combed cotton process, uniformly lapping according to the gram weight requirement of the produced non-woven fabric, and carrying out three-needle punching forming to obtain the cellulose diacetate non-woven fabric with the gram weight of 250 g/square meter. The tap water filter element made of cellulose diacetate non-woven fabrics intercepts granular impurities, and the detection value of 5 micron particle number is 328.
Example 2:
removing the outer package of the cellulose diacetate flock bag, opening the compressed flock silk group on a bale opener, sending the flock silk group into the coarse cotton carding and combed cotton processes in sequence, uniformly lapping according to the gram weight requirement of the produced non-woven fabric, and carrying out 4-channel spunlace molding. And then, sending the spun-laced fabric product into a spraying process, uniformly spraying normal-temperature atomizing gas of triacetin at two sides of the spun-laced fabric product, condensing 6% of triacetin on the surface of the cellulose diacetate spunlace fabric and dissolving partial tows to form a melting point, and standing the solution at normal temperature for 48 hours to obtain the cellulose diacetate non-woven fabric with 10 g/square meter. When glycerol triacetate is atomized, an ultrasonic atomizer is adopted to form room-temperature solvent atomized steam.
10 nonwoven fabrics (10 cm by 10 cm) obtained in example 2 were cut open at the center cross, and the number of short fibers in one microscope objective was obtained in the lower 10cm by 10cm plane within 1cm by 1cm, and the average value of the number of short fibers was 0.2.
Comparative example 2: removing the outer package of the cellulose diacetate flock bag, opening the compressed flock silk group on a bale opener, sending the flock silk group into the coarse cotton carding and combed cotton processes in sequence, uniformly lapping according to the gram weight requirement of the produced non-woven fabric, and carrying out spunlace forming. 10 nonwoven fabrics (10 cm x 10 cm) obtained in comparative example 2 were cut open along the center cross line, and the number of short fibers in the microscope was measured in the lower 10cm x 10cm plane within 1cm x 1cm, and the average number of short fibers was 3.1.
Example 3: a process for preparing non-woven fabric by using cellulose diacetate takes cellulose diacetate flock as a raw material and comprises the steps of unpacking, opening, coarse cotton carding, combed cotton, lapping and needle punching forming; spraying solvent to the formed cloth by spray treatment, wherein the solvent is glacial acetic acid, the dosage of the glacial acetic acid accounts for 10 percent, the spray treatment temperature is normal temperature, the standing time is 50 minutes, and finally drying and shaping are carried out, the drying temperature is 130 ℃, so that the non-woven fabric prepared from 150 g/square meter of cellulose diacetate is obtained. The burst strength of the nonwoven fabric was 400 n.
Comparative example 3: the nonwoven fabric obtained by treating the fabric in the same manner as in example 3, but not spraying the fabric after molding, had a burst strength of 77N.
Claims (10)
1. A process for preparing non-woven fabric by using cellulose diacetate short staple takes the cellulose diacetate short staple as a raw material and comprises the steps of unpacking, opening, coarse cotton carding, fine cotton combing, silk laying and forming; and spraying the formed fabric with a solvent, and finally drying and shaping to obtain the non-woven fabric prepared from the cellulose diacetate flock.
2. The process of claim 1, wherein the nonwoven fabric is prepared from cellulose diacetate flock: the monofilament specification of the cellulose diacetate flock is 1 to 2.5 denier, and the length of the cellulose diacetate flock is 6 to 25 mm.
3. The process of claim 1, wherein the nonwoven fabric is prepared from cellulose diacetate flock: and needle punching or water punching is adopted in the forming process.
4. The process of claim 3, wherein the nonwoven fabric is prepared from cellulose diacetate flock: in the forming process, the fabric is formed by at least one needling or at least one spunlace process.
5. The process of claim 1, wherein the nonwoven fabric is prepared from cellulose diacetate flock: the sprayed solvent is acetone, glacial acetic acid, glycerol triacetate or a mixed solvent of the three solvents in any proportion
The process of claim 1, wherein the nonwoven fabric is prepared from cellulose diacetate flock: the spraying amount of the solvent is 1% -13% of the mass of the cloth.
6. The process of claim 5, wherein the nonwoven fabric is prepared from cellulose diacetate flock: spraying acetone with the mass of 1-7% of the cloth during spraying treatment, wherein the spraying treatment temperature is normal temperature, and after spraying treatment and standing for 30 minutes, drying at 60-130 ℃.
7. The process of claim 5, wherein the nonwoven fabric is prepared from cellulose diacetate flock: and spraying glycerol triacetate with the mass of 3-13% of the fabric during spraying treatment, performing spraying treatment at normal temperature, standing for more than 30 minutes, and not requiring drying treatment.
8. The process of claim 1, wherein the nonwoven fabric is prepared from cellulose diacetate flock: solvent is recycled in the processes of spraying, solvent spraying, drying and shaping.
9. The use of the diacetate fiber non-woven fabric prepared by the process of any one of claims 1-7 in the process of mask production to replace melt-blown fabric, wherein the non-woven fabric is 5-30 g/m.
10. The application of the diacetate fiber non-woven fabric prepared by the process of any one of claims 1 to 7 in a filter element for water filtration, wherein the non-woven fabric is 30 to 500 g/square meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011310745.XA CN112359481A (en) | 2020-11-20 | 2020-11-20 | Process for preparing non-woven fabric by using cellulose diacetate flock and application of non-woven fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011310745.XA CN112359481A (en) | 2020-11-20 | 2020-11-20 | Process for preparing non-woven fabric by using cellulose diacetate flock and application of non-woven fabric |
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| Publication Number | Publication Date |
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| CN112359481A true CN112359481A (en) | 2021-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011310745.XA Pending CN112359481A (en) | 2020-11-20 | 2020-11-20 | Process for preparing non-woven fabric by using cellulose diacetate flock and application of non-woven fabric |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4018646A (en) * | 1973-05-09 | 1977-04-19 | Johnson & Johnson | Nonwoven fabric |
| US5427852A (en) * | 1993-07-09 | 1995-06-27 | Rhone-Poulenc Rhodia Aktiengesellschaft | Filter tow and method for its manufacture as well as tobacco smoke filter element and method for its manufacture |
| CN101199365A (en) * | 2006-12-13 | 2008-06-18 | 沈季疆 | Acetate fibre China Spunlace special for cigarette holder reducing tar and its preparing method |
| CN201334585Y (en) * | 2008-12-25 | 2009-10-28 | 叶为全 | Non-woven production line for recycling acetate fiber tows of filter rod |
| CN101816456A (en) * | 2010-04-20 | 2010-09-01 | 云南富集生物材料科技有限公司 | Cigarette filter tip composite material and preparation method thereof |
| CN102691170A (en) * | 2012-06-06 | 2012-09-26 | 云南瑞升烟草技术（集团）有限公司 | High tar reduction diacetate fiber non-woven fabric filter material for cigarettes and preparation method for filter material |
| JP2015196915A (en) * | 2014-04-01 | 2015-11-09 | 株式会社ダイセル | Hydrophilic cellulose acetate tow band and absorber using the same |
| CN105617764A (en) * | 2014-11-26 | 2016-06-01 | 浙江金海环境技术股份有限公司 | Flame-retardation oil smoke filtering non-woven fabrics, preparation method thereof and purpose thereof |
| CN108589047A (en) * | 2018-04-25 | 2018-09-28 | 上海洁晟环保科技有限公司 | A kind of method of cigarette cellulose diacetate waste silk recycling |
| CN110616505A (en) * | 2019-10-15 | 2019-12-27 | 南通醋酸纤维有限公司 | Composite acetate fiber non-woven material for cigarette filter tip, preparation method and application |
-
2020
- 2020-11-20 CN CN202011310745.XA patent/CN112359481A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4018646A (en) * | 1973-05-09 | 1977-04-19 | Johnson & Johnson | Nonwoven fabric |
| US5427852A (en) * | 1993-07-09 | 1995-06-27 | Rhone-Poulenc Rhodia Aktiengesellschaft | Filter tow and method for its manufacture as well as tobacco smoke filter element and method for its manufacture |
| CN101199365A (en) * | 2006-12-13 | 2008-06-18 | 沈季疆 | Acetate fibre China Spunlace special for cigarette holder reducing tar and its preparing method |
| CN201334585Y (en) * | 2008-12-25 | 2009-10-28 | 叶为全 | Non-woven production line for recycling acetate fiber tows of filter rod |
| CN101816456A (en) * | 2010-04-20 | 2010-09-01 | 云南富集生物材料科技有限公司 | Cigarette filter tip composite material and preparation method thereof |
| CN102691170A (en) * | 2012-06-06 | 2012-09-26 | 云南瑞升烟草技术（集团）有限公司 | High tar reduction diacetate fiber non-woven fabric filter material for cigarettes and preparation method for filter material |
| JP2015196915A (en) * | 2014-04-01 | 2015-11-09 | 株式会社ダイセル | Hydrophilic cellulose acetate tow band and absorber using the same |
| CN105617764A (en) * | 2014-11-26 | 2016-06-01 | 浙江金海环境技术股份有限公司 | Flame-retardation oil smoke filtering non-woven fabrics, preparation method thereof and purpose thereof |
| CN108589047A (en) * | 2018-04-25 | 2018-09-28 | 上海洁晟环保科技有限公司 | A kind of method of cigarette cellulose diacetate waste silk recycling |
| CN110616505A (en) * | 2019-10-15 | 2019-12-27 | 南通醋酸纤维有限公司 | Composite acetate fiber non-woven material for cigarette filter tip, preparation method and application |
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